["Wambi, the jungle boy, had coaxed his friends Tawn and Ogg to level and place the huge tree trunk for him...](Table of Contents)

When Wambi asks Tawn and Ogg for their help in returning a hippo calf to its mother, they refuse, saying they owe nothing to the calf. Later, when Tawn's calf is endangered by native hunters, the hippo mother comes to the rescue. Tawn and Ogg learned a lesson in gratitude.

Keywords:

canoe making; hippopotamuses

["The long months of espionage work had ended at last for Captain Terry Thunder."](Table of Contents)

Miss Porter and Kafir plot to make Kafir chief of the Kibalas. Kafir pretends to be blind and is granted entrance to the Kibalas' sacred temple. Once inside, he uses a camera to photograph the idol. Later, he claims to be the rightful chief of the Kibalas due to his amazing powers. He waves his hand over a canvas (previously treated by Porter to create a photographic print) and causes the image of the idol to appear. Terry exposes Kafir as sighted by threatening him with a spear which causes the fraud to flinch.

A pair of crooked traders take the Walsulis' sacred white hippopotamus. Camilla pursues them and recovers the sacred animal. The traders are killed by the other animals they had captured for the circus trade.